cancel
Showing results for 
Search instead for 
Did you mean: 

MF644Cdw - Scan to email stopped working

esullivan
Apprentice

I recently switched to ATT&T fiber from Spectrum.  Scanning to email via SMTP from my Google account worked fine with Spectrum however that stopped when on AT&T.  Troubleshooting steps I have taken:

  1. Added the printer to my phones hotspot (works again)
  2. Installed and configured an email client on my computer wit the same settings (new app password) and it works, I can send an email.
  3. Reset the app password from Google (did not work)
  4. Added the printer to the DMZ of the new router (did not work)

Being that my computer can send an email from a client using the same settings, it stands to reason the router nor AT&T in general is blocking SMTP traffic.  I am currently at a loss.  My last thought it the printer is sending the SMTP traffic weird somehow?

I would appreciate any new troubleshooting steps that would not be covered under the above steps already taken.

1 ACCEPTED SOLUTION

esullivan
Apprentice

AT&T was blocking port 25.  I had to change the port manually in this printer (just checking the box for TLS didn't change it to 587)

View solution in original post

1 REPLY 1

esullivan
Apprentice

AT&T was blocking port 25.  I had to change the port manually in this printer (just checking the box for TLS didn't change it to 587)

Announcements
06/30/2022: Service Notice: EOS 70D: Error 70 or Error 80
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
06/07/2022: New firmware version 1.0.3 is available for EOS M50 Mark II
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version 1.0.5.1 is available for EOS-C500 Mark II
05/26/2022: New firmware version 1.0.3.1 is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
04/26/2022: New firmware version 1.0.1.1 is available for EOS R5 C
03/23/2022: New firmware version 1.0.3.1 is available for EOS-C70
03/22/2022: New firmware version 1.2.0 is available for PowerShot PICK
03/16/2022: New firmware version 1.5.2 is available for EOS-R5
03/16/2022: New firmware version 1.5.2 is available for EOS-R6
02/09/2022: Share Your Photos is back!
02/07/2022: New firmware version 1.1.1 is available for EOS-R3
02/07/2022: New firmware version 1.6.1 is available for EOS-1DX Mark III
01/19/2022: READY FOR ANYTHING EOS-R5 C
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.
01/05/2022: Welcome to CES 2022!
12/7/2021: New firmware version 1.3.0 is available for Mount Adapter EF-EOS R 0.71x
12/7/2021: New firmware version 1.1.1 is available for CR-N 300
12/7/2021: New firmware version 1.1.1 is available for CR-N 500
12/2/2021: New firmware version 1.1.0 is available for RF 70-200 F4 L IS USM